Limits on the Variability ofUsing Binary-Pulsar Data
- 5 September 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 61 (10) , 1151-1154
- https://doi.org/10.1103/physrevlett.61.1151
Abstract
One of the few experimental handles on unified theories of gravity with other interactions comes from possible time variation of coupling constants over the Hubble time: . We present a new theory-independent estimate (consistent with zero) of the time variation of Newton's gravitational constant derived from the timing of the binary pulsar PSR 1913+16: . We anticipate that this estimate will become sharper as more data are acquired.
Keywords
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